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Installation Procedures: Route and Attach Power Cables to the Racks
InfraStruXure System - Installation and Start-Up 27
application) from the enclosure through the Liquidtite conduit to the PDU.
4. At the PDU, route the cable through the opening you created in step 1
and then up through the wireway (
) at either side of the PDU. This
will allow you to connect the cable to the circuit breaker panel.
5. At the circuit breaker panel, cut the wires to the proper length, and
connect the power cable’s individual wires:
a. If you have branch current monitoring installed, route each phase
conductor through a current sensor. If it is a three-phase cable, route
the L1, L2, and L3 wires through a separate current sensor.
b. Connect the L1, L2, and L3 wires to the circuit breaker(s). The
illustration below shows a three-phase cable connecting to three
single pole breakers; however, you can also connect a three-phase
cable to a three-pole breaker, or a single-phase cable to a single-pole
circuit breaker.
c. Connect the neutral wire to the closest open termination point on the
Neutral Bar (N).
d. Connect the ground wire to the closest open termination point on the Ground Bar (G).
Caution: Any multi-circuit power cable that is installed by an electrical contractor must
be installed with a 3-pole circuit breaker.